Tire cover side plate



Aug.6, 1935. G,'A LYON Y 2,010,099

Aug. 6, 1935. G. A. LYON TIRE COVER SIDEl PLATE Filed Ju'ne 50. 1931 2 Sheets-Sheet 2 WED 2.5i

v .15: plate. i

' bev apparent from thevdisclsures inthespecifl- Patented Aug. 6, 1935 covER SIDE rLA'rE George Albert Lyon, Allenhurst, N. J., assignerk g to Lyon Incorporated, Asbury Park, N. J., a corporation of l1l)ela.ware y A Application June so, 1931, serial Ne. 541,930

` 4 claims. (ci. `15o-54) This invention relates to tire covers, and more particularly to a ring-like side platefor use on a tire cover of the type known as .the Lyon cover as Well asto a method of manufacturing` the side 1c is Jthe aim ef this 4hwennmh te provide airinglike side partor plate which is of suchfaconstruction that waste of 'materla1 is `n iinimizledand the` part ofacontinu# plate for use in a, tire cover.l l

invention there is provided a ring-like plate coinposed of a pair of concentric strips formed for connection throughout the circumferential length of the plate and ata median point in the plate and being of such va convex curvature as to be capableof being separately manufactured by the use of a rolling process as distinguished' from a punch press process.

l other objects and reatureel of this mventionwin cation and the accompanying drawings, in which Figure 1 is an enlarged fragmentary sectional View of a tire to which altire 1cover formed in accordance with the present invention is applied.

Figure 2 is afragmentary perspective view` of a flat strip of sheet metal from which each part of the side plate madevin accordance with the present invention maybe `fabricated.

Figure 3 shows in elevation an outer part of a i tire cover side plate made from the stripvof Vmaterial shown in Figure 2,. N p f p Figure l is an enlarged fragmentarysectional View of thesame afterthe rolling operation on the `strip of metal.

Figure 5 is a view similar to Figure 4 but show-f ing in dotted lines the marginal Vportions which have been removed. e Y

Figure 6 is a view similar to Figure 5, but showing the side plate part in 'a further state of completion. Y i

Figure 7 is a view similar to` Figure 6 but showing the side platepart completedand ready for assembly. y j

Figure 8 is a view similar to Figure ibut sho-w.- ing the complemental inner side plate piece as `it appears after the rolling operation on the strip ofmetal. p

Figure 9 is a vievs7 similar to` Figure with the dotted lines indicating the marginal portions to In accordance with the genral `featuresof this be removed and also Vshowing this side plate in a` further state of completion.VV Y

Figure 1D is a view similar to Figure 9 butshowingthis' side plate part in a still further state `of completion. Y

` Figure l1 isa similar view showing theinnerside'plate part complete and readyior assembly with the outer part.

Referring now more particularly to the draw;` c

ings wherein the same parts are indicated throughout by the same reference characters, the tire I is shown provided witha tire coverconsisting of a preferably resilient ring member or rimv 2 and a composite side plate3. Y f

The side plate 3 made in accordance with the present invention comprises an outer member il and an inner member 5, one orbothhof `which may be made of stainless steel or like material or may be chrome plated or may be covered with a coat of enameLlacquer'lor the like, preferably harmonizing with the shade of they automobilebody in connection with` which'itis to be used.

The usual cushioning means 6 carried `by the side fplate 3 prevents metalto metal contact between saidpiete and therim 2. jjj Side plates of the general character herein dis-1 closed have formerly beenmade in'one piece by stamping out of a square piece of metal. This has been a very wasteful procedure for the rea` touching the rubber orrlik'e cushioning material;

6, so, that the latterwill not lose a. large part of its eilciencyas has been the case in the past' Wherepthe side plate has beenv made of one piece so that when lacquer or the like was applied it contacted the rubber and partially dissolved the same. K Even where, in ,the past, `the .one piece side plate has been enameled or otherwise coated and then the coating allowed to dry before` the' rubberwas crimped in place, Vthe act of crimping produced cracks in the coating.- l j e In accordance with the present inventioma strip 1 of sheet metal somewhat wider thanthe ultimate width of the outer part Lof the `side Si' PATENT OFFICE.,

22 thus formed has, asin the case of the first plate is rolled in such a manner that one edge 8 is turned at a greater speed than the other edge 9 until the strip 'I is substantially circular in form as indicated at I0 in Figure 3. The ends II of the strip 'I are then butt-welded or otherwise joined as indicated in dotted lines at I2 in Figure 3, and the ash or burrs ground olf smooth. The annulus I0 is then in the form in cross section shown in Figure 4.

Due to the rolling action on the edges 8 and 9 of the strip-`I the outer and inner marginal portions I3 and I4 will be somewhat rough and these portions, indicated also in Figure 5 in dotted lines, are removed either before or after the welding operation just mentioned. The remainder or the marginal portions I3 and I4 have been removed, and the marginal edge portions I 5 and I'I are thereupon spun to form respectively a substantially U-shaped bulged or beaded portion I8 and an inner substantially cylindrical portion I9. The latter portion is subsequently bent by a spinning or other suitable operation at 2E! to form a smooth edge, the free portion of the cylindrical portion I9 being enlarged as shown at 2 I VIt will be noted that the rolling operation imparts to the strip I a dished shape so that when the outer side plate part 4 is applied to the side wall of the tire I, it will conform approximately to the contour thereof.

The inner side plate part 5 is likewise formed from a strip 'I by a rolling operation in the shape of an annulus with an arcuate cross-section constituting in effect a continuation of the arcuate shape of the iirst or outer part 4. The annulus turn bent upon the body of the member 22 as indicated in Figure 11 at 28. The member 22 is now ready for assembly with the member I5 shown in Figure '7.

It will be understood that the parts I5 and 22 are so formed that the outer peripheral edge 29 of the member 22 will fit in the cylindrical portion 2I of the member I5 as shown in Figure 1.

f When the parts are thus brought together, the

flange 2I is spun or crimped radially inward and laterally against the outer Vperipheral portion of the part 22, and the projecting portion 25 will be forced against the portion 2l with suf,-v

cient pressure to form a corresponding projection 30 in the portion ZI, and the two projectingV portions willI engage each other with substantial-v ly` spring pressure so that not only will the parts 4 and 5 be interlocked permanently but by reaing side plates in one piece, the waste incurred in accordance with the principles of the present invention is practically negligible. In addition, aside from the waste of materials, the cost of production is substantially reduced in accordance with this invention for the reason that in stamping, the operations are punctuated or intermittent whereas in rolling, the strip 'I may be continuous and separate means aside from the rolling apparatus, or in combination with the latter if desired, may be employed to cut off the strip metal as it is rolled in appropriate lengths from which the parts 4 and 5 may be fabricated. In addition, where it is desired to have a contrast in color between Vthe parts 4 and 5, the part 5 may be enameled or otherwise coated and after the coating has dried the part 5 may be interlocked with the part 4. By so doing, the enamel or the like cannot contact the rubber or like cushioning member 6 so 'that the efficiency of the latter will be unimpaired in use. `V

I am aware that many changes may be made and 'numerous details of construction may be varied through a wide ,range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

I claim as my invention:

l. A sparetire cover comprising an arcuate plate-like member shaped circumferentially and radially to substantially conform to the front wall of a tire, said member having substantially foremost thereof a multiple thickness reinforcing impact'receiving portion substantially coextensive with the cover and constructed to resist deformation and protect the remainder of the member from injury by impact or by rough supporting surfaces when not mounted on a spare tire carried by a vehicle, said portionl constituting a connection between two arcuate vplate-like parts, said connection comprising Vresiliently interlocked margins.

2. In a tire cover construction, a circular sheet metal member, formed to cover the front wall of a tire and comprising a plurality of interlocked concentric strips whose ends are joined to form a single plate, said plate being transversely bulged forwardlyv to Vconform substantially with the transverse curvature of the wall of the tire, and being reinforced along the line of interlocking and the reinforced portion being disposed substantially foremost so as to provide an impact receiving and withstanding portion for shielding the adjacent parts of the plate from injury to which they would otherwise be subject, said portion projecting so as to space said parts from the tire.

3,'In a tire cover construction', a substantially form-retaining member of sheet material formed to cover the front wall of the tire and with its front surface substantially smooth and unobstructed, said plate being transversely bulged to conform substantially tothe transverse curvature of the wall of the tire, and being reinforced inwardly from its outer periphery to provide an irnpact receiving and withstanding portion in advance of the adjacent parte of the member to shield them from' injury to which they would otherwise fbe subject, said portion projecting so as to space said parts from the tire.

4. In a tire cover construction, a substantially form-retainingmember of sheet material formed to cover the front wall of the tire and transversely bulged'to conform substantially to the transverse curvature of the wall of the tire, and being reinforced inwardly from its outer periphery to provide an impactre'ceiving and withstanding portion in advance of the adjacent parts of the member to shield them from injury to which they would otherwise .be,subjec,t, said portion'projecting Vso as to space said partsfrom the tire.

GEORGE ALBERT LYON. 

